1小学数学知识点大全目录第一章数和数的运算...................................................................................................................................................................2一、概念.........................................................................................................................................................................................2（二）小数.....................................................................................................................................................................................2（三）分数.....................................................................................................................................................................................3（四）百分数.................................................................................................................................................................................4（五）数的整除.............................................................................................................................................................................5二、性质和规律.............................................................................................................................................................................7三、运算法则.................................................................................................................................................................................7（一）整数四则运算的法则.........................................................................................................................................................7（二）小数四则运算.....................................................................................................................................................................8（三）分数四则运算.....................................................................................................................................................................8（四）运算定律.............................................................................................................................................................................8（五）计算方法.............................................................................................................................................................................9（六）运算顺序.........................................................................................................................................................................10四、应用.......................................................................................................................................................................................10（一）整数和小数的应用...........................................................................................................................................................11（二）分数和百分数的应用.......................................................................................................................................................15常用的数量关系式..........................................................................................................................
